What the low grade creep done left on you post sexy time. He/she is so ratchet that they on gutter level. You take them to the Chinese restaurant across town so no one sees them with you.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.